MP3 Cutter Online
Trim any MP3 file instantly in your browser. Set start and end points on a waveform, cut, and download. Free, private, no install.
How to Cut MP3 Files Online
1. Open the Audio Cutter on cut.audio 2. Load your MP3 file (drag and drop or click to browse) 3. The waveform appears — you can see the entire audio visually 4. Drag the start and end markers to select the section you want to keep 5. Click Export and choose your output format (MP3, WAV, FLAC, or OGG) 6. Your trimmed file downloads instantly The entire process happens in your browser using WebAssembly. Your file never leaves your device — there's no upload, no server processing, and no waiting.
Why Use a Browser-Based MP3 Cutter?
Traditional audio editors like Audacity require installation and have complex interfaces designed for professionals. Online cutters that upload your files to a server are slow and raise privacy concerns. cut.audio's cutter runs entirely in your browser: • No installation — works on any device with a browser • No upload — your audio stays on your device • No waiting — processing happens locally at near-native speed • No account — no signup, no email, no payment
Supported Formats
The cutter accepts MP3, WAV, FLAC, and OGG input files. You can export in any of these formats regardless of the input format. This means you can load an MP3 and export as WAV for lossless quality, or load a WAV and export as MP3 for a smaller file.
Try it now — free in your browser
No download. No signup. Your files never leave your device.
Open Audio CutterFrequently Asked Questions
Yes. All features are free with no limits. There's no premium tier, no watermarks, and no file size restrictions.
If you export as MP3, the file is re-encoded which can slightly reduce quality. For perfect quality preservation, export as WAV or FLAC. The quality difference in MP3 re-encoding is negligible for most use cases.
Yes. Use the slice markers to define multiple cut points and export individual sections.